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BJOG. 2014 Nov;121(12):1501-8. doi: 10.1111/1471-0528.12680. Epub 2014 Mar 7.

Predictors of adverse pregnancy outcomes in women infected with HIV in Latin America and the Caribbean: a cohort study.

Author information

1
Irmandade da Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil.

Abstract

OBJECTIVE:

To examine maternal characteristics associated with adverse pregnancy outcomes among women infected with HIV.

DESIGN:

Prospective cohort study.

SETTING:

Multiple sites in Latin America and the Caribbean.

POPULATION:

Women infected with HIV enrolled in the Perinatal (2002-2007) and the Longitudinal Study in Latin American Countries (LILAC; 2008-2012) studies of the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) International Site Development Initiative (NISDI).

METHODS:

Frequencies of adverse pregnancy outcomes assessed among pregnancies. Risk factors investigated by logistic regression analysis.

MAIN OUTCOME MEASURES:

Adverse pregnancy outcomes, including preterm delivery (PT), low birthweight (LBW), small for gestational age (SGA), stillbirth (SB), and neonatal death.

RESULTS:

Among 1512 women, 1.9% (95% confidence interval, 95% CI, 1.3-2.7) of singleton pregnancies resulted in a stillbirth and 32.9% (95% CI 30.6-35.4) had at least one adverse pregnancy outcome. Of 1483 singleton live births, 19.8% (95% CI 17.8-21.9) were PT, 14.2% (95% CI 12.5-16.1) were LBW, 12.6% (95% CI 10.9-14.4) were SGA, and 0.4% (95% CI 0.2-0.9) of infants died within 28 days of birth. Multivariable logistic regression modelling indicated that the following risk factors increased the probability of having one or more adverse pregnancy outcomes: lower maternal body mass index at delivery (odds ratio, OR, 2.2; 95% CI 1.4-3.5), hospitalisation during pregnancy (OR 3.3; 95% CI 2.0-5.3), hypertension during pregnancy (OR 2.7; 95% CI 1.5-4.8), antiretroviral use at conception (OR 1.4; 95% CI 1.0-1.9), and tobacco use during pregnancy (OR 1.7; 95% CI 1.3-2.2). The results of fitting multivariable logistic regression models for PT, LBW, SGA, and SB are also reported.

CONCLUSIONS:

Women infected with HIV had a relatively high occurrence of adverse pregnancy outcomes, and some maternal risk factors were associated with these adverse pregnancy outcomes. Interventions targeting modifiable risk factors should be evaluated further.

KEYWORDS:

HIV; Latin America; pregnancy; pregnancy outcomes; prematurity

PMID:
24602102
PMCID:
PMC4157114
DOI:
10.1111/1471-0528.12680
[Indexed for MEDLINE]
Free PMC Article
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